Rank: Member
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Joined: 18/04/2008(UTC)
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Hi. Im nearly at my witts end trying to solve my problem. i have recently bought my second vp commodore. it runs fine, but it doesnt start very easy when hot( 10 seconds or more of cranking)
This is a list of new components i have added to the car to try and solve it
Plugs
Leads
Coils and Dfi
Temp sensor
Oxygen Sensor
crank angle sensor
harmonic balancer
I have also thougoly cleaned the throttle body and iac pintle( didnt touch any other part just the pintle)
Any Help would be great
Thankyou
Brendan
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Rank: Member
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Posts: 282
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Possible leaking injectors...does it blow black smoke when it starts?
Fuel pressure reg can be dicky also.
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Rank: Member
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The definition in the hard starting section of the factory engine manual is "Engine cranks ok but does not start for a long time". Leaking injectors are mentioned and so is a faulty in tank fuel pump check valve. This will allow the fuel to drain back i
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Rank: Member
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Thanks but i forgot to add a few things to that list
it has ultrasonically cleaned injectors, a new fuel pump and new fuel regulator. sorry i was very tired when i wrote it all in
Brendan
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Rank: Guest
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Hi Brendan just wondering if you now fixed your problem? I have a VX Commodore V6 has exactly the same problem. It is very hard to start when hot. I have replaced injectors, plugs, fuel filter, air filter, it was due for a service but I decided to do thin
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Rank: Guest
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have you had it on a scan tool? have you had the fuel pressure checked?
where are you located?
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Rank: Guest
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Try swapping your fuel pump relay for another similar relay e.g. horn? and see if that helps.
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Rank: Guest
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Hey Thanks guys, I bought a new fuel pump and will change it over the weekend.
Cheers
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Rank: Guest
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Hey Thank's guys, I bought a new fuel pump and will change it over the weekend.
Cheers
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Rank: Member
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Have you replaced the fuel filter, I had a VT and when it was cold it started fine as the sediment had settled in the filter, but once it was all stirred up it would cut out at times and would be hard to start hot, could be worth a try.
Peter
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202 and three on the tree, can't get more Aussie than that!! |
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